Calculating-machine.



A. S. MQCASKEY.

CALCULATING MACHINE.

APPLICATION FILED MAY 19, 1903.

Patented Feb. 27, 1912.

HEET 1.

INVENTOR. I BY Qy'redX/1(TJkey ATTORNE).

A. S. MQGASKEY. CALCULATING MACHINE.

APPLICATION FILED KAY 19, 1903.

2 1 9 1 ml 2 .b e F d 6 b n e t a P 2 T E E H B on T E E H S 8 Inventor. {(1 B QQflred JALfizs uy A TTORNEX A. S. MGGASKEY.

CALCULATING MACHINE.

APPLIGATION FILED MAY 19, 1903.

Patented Feb. 27, '1912.

a SHEETS-SHEET a.

WITNESSES: INVENTOR.

- BY ay dfl/ffiw/fg.

"/ AIM A TTORNEY.

Patented Feb. 27, 1912.

8 SHEETS-SHEET 4.

A. s. MOOASKEY. CALCULATING MACHINE.

APPLICATION FILED MAY 1 9 s a e a 9 9 9 9 [NVENTOR w gT i/iia V? W A. s. MoOASKEY CALCULATING MACHINE. APPLICATION FILED iIAY 19, 1903.

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i T E E H S B T E E H S a INVENTOR BY Zj'red ATTORNEY A. s]. MQGASKEY. CALCULATING MACHINE.

APPLICATION FILED MAY 19, 1903,

Patented Feb. 27, 1912.

8 SHEETS-SHEET 6.

[N VEN TOR B Y CZZjr-edJf K woic ilxil A TTdR/VE Y..

I A. s. MOGA KEYJ CALCULATING MACHINE.

APPLICATION FILED MAY 19, 1903.

Patented Feb. 27,1912.

8 SHEETS-SHEET a.

, UNITED STATES PATENT oEEIoE.

ALFRED S. MGCASKEY, OF CHICAGO, ILLINOIS, ASSIGNOR, BY ASSIGNMENTS, '10

HOCASKEY ELECTRIC CALCULATOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

CALCULATING-MACHINE.

Patented Feb. 27, 1912.

Application filed May 19, 1903. Serial No. 157,769.

To all it may concern:

Be it known that I, ALFRED S. MCGASKEY,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Calculating- Machines, of which the following is a speclfication. 1

.This inventioii relates to calculating or computing machines, and has for its, general object the construction of a device of this class of a much wider range of usefulness than those best known in the art toda'y, coupled with the greatest possible simplicity of operation and a-- maximum of speed.

I have invi ew a machine requiring a minimum of manual-labor in operation, exoept for a slight depression of the proper keys, i'the operating power being supplied from a substantially constant source, such as a motor or' engine directly connected therewith or indirectly through suitable power-transmitting means.

Devices for carrying out mechanically or- 5 dinary processes of mathematical calculations must depend,----,0bviously, upon as nearly as possible perfect .control of distances of motion. Taking it for granted that a conveniently located series of figure wheels provides the best'means for indicating results, it will'be at once apparent that the problemwhich presents greatest-diflicuL- ties in the construction of a calculating machine is not so much the means which may 35.be. employed to rotate said wheels, as the means for abruptly, positively and accuratel stopping each thereof at a predeotermmed point in its rotation. Where working parts are positively operated from 40 the source of power-particularly .in machines in which. the energy generated by a motor or engine is employed to do the work-and series of temporary stops pro-' vided to check this positive movement at various predetermined points, it is obvious that the wear and tear upon the machine as a whole and the delicate parts thereof will be great, and the door left open for inaccuracies for which inertia and the sudden application of counteracting forces are res onsible.

. istances of' motion, so far 'as possible, by varying the starting pointand not the sto ping point of the moving parts which o a ing these I prefer to determine and limit, places ang unavoidable limitation upon the work, not least among the advantages of which is the fact that heavier and more damaging impacts are received upon permanent stops. Furthermore, I am enabled in this manner to effect a gain in speed and accuracy and to enter upon new fields" of pracunder said yielding impulses, are free to move through the predetermined arcs or distances of reciprocation, and, fourthly, return said elements to their normal or re- 'tracted' positions under positive applications of power to do the requlred work. In the'following specification I shall, for the sake of brevity, use the expression set up or setting up as referrin to the op-' eration of determining values ylimiting distances through which parts or elements will subsequently move, as accomplished in the usual manner by the depression of keys. Similarly, I shall use the word transmit-l ting as referring to the operation of mov parts or elements to indicate re-' sults. j a

I have in view a machine in which the mechanism intermediate of the keys andthe indicating figure wheels or printing mechanismsprovid'es for proper transmission of a number which has been set up in such a "manner as not to interfere with the immediate settin up of the next succeeding num-- her or com ination of figures, whereby no time need belost in waiting for the machine to complete the calculating or computing,

indicating and printing operations.

I have in view, further,-w'hat is generally termed a nine-key machine, dispensin with the series of rows or columns of digit keys, the employment of which necessarily increases the mentaleflort required to successfully operate'a machine of this class and s ed. 7 I havevin view, therefore, a machine in the operation of which no attention need be'paid 'to the relative locations of digit keys, or efi'ort made to locate figures in particular columns or spaces. In other words, the figureklast set upby the depression of a key invariably occupies the osi- .tion farthest to the right, whereby, i the number contains more than one figure, the settin up of one automatically removes or trans era the other or others one space or colunm to the left, so that the successive depression of the proper digit key in a single series thereof automatically 'places each f figure in its proper digitalposition.

I have in view, further, a machine in which the powerful and positive cam movement is employed wherever ossible to provide the workinggforce an to insure accurate timing of the various movements.

I have in view, further, the employment ofyielding means for; power transmission to set sto s and otherwise limit distances of" in setting the parts for subsequent work whereby the parts or elements to be mov may be held or checked against movement, either" in their normal points intheir paths 0 'movement, yet .sub- ]60t to a constanttendency to move. A positive force being applied to return these parts to their normal positions, and the actual work being done upon the return and not upon the primary stroke or'movement,

I am thus ableto' avail myself of a number of what I may term' storehouses of energy motiono the various working parts, with resultant economy of energy and simplification, of constrnctlon. v y v I have in view, further, such an-arrangement, adjustment and combination of arts as willenableme to take advantage 0 numerous mathematical laws 'to increase the example, it is well known-that the For range of usefulness of "my machine.

recess of multiplication is merely a me od of facilitating a series'pf repeated additions. My invention, therefore, contemplates mechanisms which will, when it is desired,

automatically repeat the process, of addition a predetermined number of times, and that with. exceedin rapidity, whereby a probl'emfin' multip 'c'ation may be rapidly. and

accurately solved, It is also well known that the remainder, obtained from the sub 'traction of one number from another is made 11 of a combination of figures iden .tically esame as is obtained byv adding to is carried into, or adde "the minuend the complement of the subtrahehd, -with the'exception of the fact that as a result of the latter (process the digit 1 "occupying the column .or space to the left of that occupied thefirst figure in the complement of thes ubtrahend; I take advantage of this law to enable me to carry out expeditiously, by the use of my machine,-

any ordinary problem in subtraction. The

ositions or at other a means for transmitting orftransferring these values to the computing mechanisms and to previous t'r'ansmitti to the digit already process of division may be termed the simplification of a seriesof repeated subtractions, which fact enables me toemploy my machine to great advantage in calculations tions are suificiently' independent that the' operator may proceed to set up the next succeedin .number or amount while the machineis transmitting to the indicating and printing means the number just previously set up.

My invention further consists in the novel means for setting up a number or originally imparting values to the machine.

My, invention furtherconsists in novel the indicating and printing means.

My invention further consists in an endless or continuous series of rows of normally inoperative stops, movably supported and adapted to be automatically advanced as one stopjn each row is rendered operative, and I otherwise at, will, to limit distances of movement of reciprocatin parts.

My invention furt er consists in means for controlling in various ways the movement, of this stop-support.

My. invention further consists in novel means for automatically and otherwise erasing values or numbers which have been set up, and in erasing means which do not in terfere with the transmitting mechanism, whereby another number may be immediately set up for subsequent transmission without waiting for the completion of-the operation. My slliVGIllZlOn furer consists in a series of figure wheels withno'vel'means :Eor operating and controllin the same, and in the means for car 1 the digit 1 to each succeeding; whee to theleft as the .0 upon each .wh'eel asses a. predetermined, oint,-.

and in nove means for simultaneous y returning all of wheels to zero.

H My invention further consists in novel means for verifying the operation of the original value-determining means.

My invention further consists in each of a plurality of-auxiliary keys, having separate, istinct and novel functions, and in "the novel means functions; n V

My invention further consists in the various novel means for applying power to the.

moving parts, and in the means for storing employed for carrying out these v 25 matic printing and listing mechanism, and rotate, although normally held against ro-- 35 ing drawings, forming a part of this speciface of the rim 1*- of the cup. The shaft S "4 tion of the. computing, indicating and energy to rotate the shaft S upon release of 1,01s,5io 7 ener whereby parts may be given a contail views hereinafter referredto-and de- '65 stan tendency to move while checked scribed.

against movement, andwill move immedi- Referring now to the drawings in detail, ately upon release of the checking or Tre- I prefer to mount my machine upon a suit- I 5 taining means. able base-board B, all the operating mocha:

My invention further consists in a single nisms being preferably inclosed Within a 70 shaft, having a constant tendency to rotate permanent casing C, of suitable configura- I and normally checked against rotation, for tion,made up of a plurality of sections desupplying the power to the various working tachably connected and adjusted to facili- I I parts of my machine, and in the means for tate access to the working parts when dea releasing said. shaft for one or a predetersired. I Y mined number of rotations, and in a series Journaled in-bearings in suitable sup of cams thereon, and in each one thereof, of ports mounted upon the base-board B,

suitable configuration and suitably located the main power shaftS designed to be con-' to impart the proper motion at the proper nected'in any suitable manner-to a motoror time to the parts in' operative proximity other source of power (these connections not f l) thereto. being shownin the drawings). Afriction My invention further consists in a novel clutch F 4 (shown in detail in F ig."26), or, escapement mechanism, and in the various other suitable form of clutch, divides this means for controlling said mechanism, the shaft into two members, the major portion step-by-step movement thereof, and the or member S thereof rotating constantly number of steps through which moved at while the machine is in use, while the porone operation. tion or member S ,the reof has constantly, My invention further consist-s in the autounder operation of said clutch, a tendency to in the novel manner of operating. and contation in a manner and for a purpose which trolling said mechanism. And. my invention will be hereinafter set forth. This friction further consists in the various det-ails'of con-- clutch F may be of any preferred construcstruction, and in the location, adjustment, tion which will accomplish the purpose de- 30 relationship and combinations of parts, all sired, the one shown in the drawings comas hereinafter described. and particularly, prising the usual cup member c rigidly at pointed out in the claims. g tached to the shaft S, the shaft S being My invention will. be more readily unprovided with a head carrying the springderstood by reference to the accompany: .pressed shoes (1 a slidable against the Inner fication, in which is illustrateda practical being held against rotation, it is obvious H10 and convenient embodiment of my inventhat the frictional contact between said tion, and in wh1ch shoes and rim, upon rotation of said shaft Figure 1 is a partly sectional side eleva- S may be made to provide the necessary printing mechanisms, occupying the space the checking means, said shoes sliding of substantially the rear half of the casing, against .the inner face of the rim when the and being a continuation of Fig. 2, which is shaft S is held against rotation. To insure a similar view of the valuedetermining alinement-,I have shown (Fig. 26) the shaft 45 mechanisms, occupying the front or remain- S extending a slight distance into the coling portion of the casing. Fig. 3 is a front lar at"the extremity ,of the shaft S which elevation, the plate or plates of the casing forms a part of the cup 0-.

', having been removed. Fig. 4 is atop plan The shaft S is provided with a worm in view of that portion ofthe machine shown operative relation to the worm-gear 9 Fig.

50 in Fig, 1. Fig. 5 is a top plan View of that A at the extremity of a shaft L which is portion shown in Fig. 2. Figs. 6, 7, 8, 9, similarlyjournaled in bearings in supports l1 10, 11, 12 and 13 are detailed views of parts upon the base-board B. The other extremof the escapement mechanism, hereinafter ity of the shaft S is provided-with a beveldescribed. Fig. 14 is a plan of the cam gear g (Figs. 2 and 5) meshing wit-h a 55 shaftsshowing the relativedocat-ion theresimilar bevel-gear g at the extremity of on ofeach of the cams, detailed views of the shaft S, which is provided with a simiwhich appear in Figs. 15, 16, 17, 18, 19 and lar gear at its other extremity (not shown 20. Fig. 21 is a partly sectional elevation in the drawings) meshing with the bevelof the series of figure wheels and support. gear g at the lower extremity, of'the Yer- 60 therefor. Figs. 22. 23, 24 and 25 are details, tical shaft S The shaft S is similarly subsequently described. Fig. 26 is a central divided by the friction clutch F, (or other 25 section of the preferred form of friction. suitable form of clutch,) Whioh,1n construcclutch, hereinafter identified and described, 'tion and function, is preferably identical s and Figs. 27, 28, 29 30, 31 and 32, are de- .'in all respects to theclutch F whereby the major portion of the shaft S, rotating constantly at a relatively reduced rate of speed under action of the power shaft S ,'will rotate the shaft SFwhenthe latter is free to rotate and provide a constant source of energy to, keep said shaft S' at all times under a positive tendencyto rotate when checked or held against rotation.

Rigidly mounted upon the vertical shaft S is the circular disk d, which I have shown provided with preferably one hundred peripheral teeth 6 I A vertical shaft S, freely rotatable in supports suitably carried'by the frame of the machine, has fixed thereon the cupped disk or barrel (Z said barrel being provided with a flange or rim 2 which I have shown provided 'with preferably thirty-five peripheral teeth .23

I meshing with the teeth t of the disk d As a fpreferred' construction, a ring d provided with seven equidistant, peripheral ratchet teeth t, has a cupped portion or flange 3 adapted to be wedged into-or otherwise suitably attached to the barrel d Loosely mounted upon the bearing sleeve 4 of the barrel d, to rotate I independently ofsaid barrel and shaft, is

the disk d, providedwith a similar number of similarly disposed ratchet teeth t. A collar 4' secured to said shaft S limits the movement of said disk d to that of rotation only, while a coil spring f (shown in Fig.

' 5 but not shown in Fig. 2) suitably secured at one extremity to said collar 4 and at the other extremity'to a pin 5 on the face of the disk (1, provides a constant force tending to rotate said disk. The disk (1 is provided on its under side (as shown in Figs. 6 and 7) with an annular groove or channel 6, extending substantially six-sevenths 1 of the distance around said disk,,-the extremities 7 and 7" of which provide stops for a purtures, are the spring-pressed pins p p p,

p and p, the upper end of each normally projecting slightlyinto the groove or channel 6. These pins constitute a series of graduated lengths, and are provided with' similar shoulder-heads 8 8 which project below the lower face of the barrel d through regularly varying distances. A sleeve .9 is mounted for longitudinal sliding movement only upon the-shaft S and carries a dis'k'd, adapted upon depression of said sleeve 9 to engage successively each of the shoulder-heads 8 8 of said pins to overcome' the force of the spring which normally retains each pin in its raised position and withdraw the same from the groove 6. The vertical movement of this sleeve '9 and disk is "controlled in a manner which will the disk d, and adapted to similarly engage, when depressed, a tooth t of the ring (i and therebyclear the path of the'teeth t of the disk d. It will be remembered that the disk d is constantly under application of a force tending to rotate said disk, which force is transmitted through the meshing teeth to the barrel d and the ring d carried thereby. It will-also be remembered that the disk d, mounted forindependent rotation, is under a constant spring pressure, rotation thereof being normally checked by the detent 11. A pin 12 on the upper face or side of the ring 11*, registering with the groove 6 in the under side'of the disk d and at all times projecting thereinto, is adapted to engage the stop 7 provided by one extremity of said groove, and thereby check rotation of said barrel d? under the force provided through the disk (1 As the bar 6 is depressed, the detent 11 enters the path of one of the teeth t of the ring d prior to releasing a tooth t of the disk :1. Upon complete release of the latter, it is rotated in the direction indicated by the arrow Fig. 5, by the spring f Under normal conditions, this rotation of the disk d will be stopped by the engagement of the projecting extremity of the pin p with the) extremity 7' of the groove 6, whereupon, the bar I) being released and returning under spring pressure to'its; normally raised position and releasing the barrel d immediately after engagement'is effected with a' "tooth of the disk d, said barrel d will be free to rotate .until stopped by'the rengage- -ment of the pin 12 with the extremity 7 of the groove 6. Normally, and except underv conditions hereinafter described, this escape:

d, meshing with one hundred teeth on the.

disk d and seven equi-distant ratchet teeth on each of the rings (i and the disk d,

efl'ecting an escapenient through an arc corresponding to five teeth on each of the disks d and (2 one complete ,rotation of the disk d willrequire twenty steps. The barrel (1 and the disk d? operating alternately, in the same direction, the former being fixed upon the shaft S, as is the collar at, is

' obvious that the coil spring f operating therebetween, will provide a constant source of energy to rot-ate the disk d.

The dlsk d is provided with twenty equidistant, ra'dial rows of apertures, Figs. 2 and 5 each row containing ten apertures, Within these apertures are mounted, for

Y limited vertical reciprocating movement, an

endless or continuous series of rows of spring-pressed pins P P P, etc. Each of these\pins P to P in each row comprises a head 3, a cylindrical shank or body 14 slidablefwithin the, aperture in which it is mounted, a shoulder 15 to limit its upward I pressed toward the center of the disk, and

each pin is provided with a bevel or taper from the shoulder 15 to the stem, whereby,

upon depression of any one of the pins in zontal, reciprocating movement between suitable fixed supports. 'Each plate 18 is provided with a series of steps 19 19, nine in number, and isnormally held in a retracted position in a manner which will'be hereinafter described. A pin in a certain row thereof in the disk (1 being depressed, forward movement of said flplate 18 correspondmg to said row will e ect engagement between the stem of the pin depressed and its corresponding step 19 on said plate 18 to stop. movement of the latter.. Each of said plates 18 carries a rack 20 (shown in dotted lines in Fig. 2) suitably attached to one side thereof, the teeth of. which mesh with the teetlrof a pinion 21 fixed upon the upper extremity of a short stud-shaft to,the other extremity of which is fixed a similar pinion 21, rotated by a rack'22 at the extremity of the reciprocatingbar b mounted in slide hearings in the frame of the machine. These 4 bars b; are bent as shown to brin their extremities into-conveniently paralel prox which the cam C operates. th'e cam-shaftS will therefore effect at the one of the pins imity. It will be noticed that the racks 20 and 22 are located upon opposite sides of the pinions whereby movement of the bar b inone direction will move the plate 18 in an opposite direction. Each of. said plates 18 is permanently held against movement toward the shaft S by pins 23 and' 23' which engage the ends of the slots 24 and 24:, respectively, ineach plate. Movement ofsaid plate 1n the opposite direct-ion is temporarily checked by means of a pin P4", similarly mounted in the tenth or last aper-- ture in each row thereof in the disk (1 This pin P is similarly spring-pressed to a raised position, but is normally held in its so depressed positionand therefore in engagement; with the shoulder 25 of the plate 18by the plate or slide 17, which is provided with a similar aperture through which a similar shoulder upon said spin P may 5 pass and be thereby retained in a depressed position. It will be apparent that depres-'' sion of any one of the remaining nine pins P to P in a' certain row, operating, as stated, through the beveled'or tapered shoul an derto force said slide longitudinally against the action of its spring, will release the pin" P, which is immediately raised .by its spring to an elevated and inoperative position, at the same time permitting of the return to normal of said slide 17 to engage the shoulder of the pin to P depressed; It will be noted that the plate 18 is now free to move from its normal position until stopped by the engagement of the extremity of the particular in P to P depressed with its corresponding step or stop 19 on said plate. Each of the reciprocating bars I), of which there are ten in the series, effects the movement of a corresponding plate 18, as described, and is operated in one direction by means of a spring f intension between apin 28 secured in. and extendin' throu h an aperture in each of said bars 5 and t e rod or harm carried between the extremities of the pair of rocker arms A fixed upon the rock-shaft S This rock-shaft is operated by means of a crank 27 pivoted to the connecting-rod or p'itman 26 spring pressed against [the cam C on' the camv V shaft S, the extremity of said pitman being preferably provided with a roller R against One rotatlon of proper time one reciprocation of the arms IA, distending all of the springs f simulta 1 free to move until the plate 18 corres onding. thereto has been released by the wit dra'wal of the in from its ath. Consequently,'

P P g to in is ro has been depmsed to release the pin P 9, the plate 18 is withheld against movement and there is no corr onding movement of the bar I) under the yielding force of the spring.

' 5 If one of the pins .1 to P has been depressed, however, releasing the plate F18 and providing a stop to limit its movement,said

" bar I) willbe free to move under the tension of-said spring f when said rocker arms A are operated, and will move through a distance equal to the distance through which the plate 18 travels, determined by the particu ar pin 1? to P depressed.

Rotatably mounted upon the rigid shaft S, suitably carried by the frame of the ma- The other branches of said lever L are connected by a rod 33, providing a support 30 for a series of tension springs f, the other end of, each of said springs being suitably attached to a sector arm A. It willbe' apparent that when said levers L are rocked thereof operating in unison, the rod 32 will be withdrawn from contact with all of said sector ai'msA and advanced to a point beyond the maximum distance of-movement of said sectors 29, the 'branchesa30 of said lever operating throu h the rod 33 to simultaneously disten all of said springs f to "impart a yielding force against each of said sector arms Afl'tending'to move each'indiof said arms A as are free to move will therefore advance under the spring tension,

1 while such*thereof as are checked against movement will remain in their normal posi tions. "To oscillate said lever L m the manshowna calnC mounted u on the camshaft S,'adapted tooperate, 'w en said shaft is rotated, upon rollers at the extremities of configuration shown to insure contact therewith at all times by both rollers, the. arms I A and A being oppositely disposed with reference. thereto, whereby movement .is positivelycontrolled in bot directions.

The teetht of; each sector 29 mesh .with the teeth. I! of oneof a series of ten-toothed pinions ,34, each rigidly secured to and contlie rotativemovement of av figure 7 {wheel 35, provided with the usual peripheral or reciprocated, that branches a 30 and 31 vidually from its normal position. Such ner and for 'the purpose described, I havethe airof arms A and Afixed upon the' sha tS; The cam C is preferably of the characters, equidistantly' disposed, indi. cating the digits from 1 to 0. Each figure wheel with its corresponding pinion 1s freely and independently rotatable on a shaft S rigidly supported between the ex tremities of a pair of rock arms A suitably pivoted at their other extremities on a bar a (Figs. 1 and 4:) connecting the sides of the frame of the machine. The entire series of figure wheels and pinions is therefore capableof a limited, vertical, reciprocating movement, controlled by the rod or pitman 36 pivoted at one end to one of said arms A and the other end'being provided'with a suitable roller'against which operates the cam C onthe shaft 8. -A rock arm A,

pivoted near the power-receiving extremity of said pitman 36 and to a, suitable support on the frame of the'machine, retains the lower end. ofsaid pitman constantly in operative'relation to said. cam. It willbe apparent that upon rotationof said shaft S, the cam C will operateto raise and lower the entire series of figure Wheels and pinions out of and into engagement with the teeth of the sectors 29. Inorder that there may be no rotary-motion of said wheels except as controlled by said sectors, I have shown -an adjustable detent 37 mounted above each pinion and adapted to engage the teeth thereof as saidwheels are raised free of the teeth of the sector, to hold or look the same against movement until released by the return of said shaft S to normal osition. The position of the cam G upon t e shaft S is so adju sted that the shaft S is raised and the teeth of the pinions disengaged from the teeth of the sectors 29"just .prior to the operation 'of the cam C to distend the springs f to move the released sectors from their normal positions. M If one or more of the arms A are free to move, and under the tension of the springs do move, the corre-,

sponding'sectors 29 will be'advancedor carried certain distances, limited and controlled as hereinafter described. The series of V pinions 34' having been just previously raised free of the teeth of the sectors, this movement of the released sectors will have i no effect. upon the figure wheels. Prior to the returnv of the sectors to their normal positions, however "said inions are returned into engagement with the teeth of said. sectors (preferably ,by gravity). It willbe apparent, therefore, that as each arm and sector is returned to its normal position,

rotation of the corresponding pinions will be effected and consequently the rotation of corresponding figure wheels through adis-' tance or are determined by the distance of movement of said sectors. 1 1

I have shown rigidly' secured to each sector arm A. a laterally extending arm.A",

carrying atitsextremity a sector 38, the end of which preferably dovetailed in or 4 otherwise secured to the arm A Each of thesesectors is provided with a series often ratchet teeth t, successive teeth being disposed at gradually increasing distances from the axis of shaft .S, whereby any one of said teeth may be engaged by anradjustable stop or detent 39, said detent being free or clear of the teeth t" in advance of the one engaged. v

A series of bars 6 the extremities of which provide the detents 39, are mounted in slide bearings in suit-able supports and capable of a limited longitudinal movement theret-hrough. Each bar 6 is provided on its lower face with a pin 40,- located and adjusted for engagement with the pin 28 extending through the bar 6 when the detent 39 isin engagement with the first tooth t of its cooperating sector 38, or when the sector 29 is in its normal position. explained the manner of operating the reciprocating bar 6 and limiting the distance through which it moves by the plate 18 and the particular .pin P to P depressed. Movement of the bar b will thus, through the pins 28 and 40, effect the movement of the corresponding detent-bar 6 through an equal distance, and against the action of aspring 1" in tension between the pin 41 on said bar b 'and the short lever L pivotally mounted upon the frame of the. machine. It will be apparent that the spring. f -and the lever L also serve to press the pawl 42 against the rack or ratchet 43, the teeth of which are spaced to retain the detent 39 at the proper distance from the sector 38 to engage a particular tooth thereupon. Thus, upon movement of the bar b through a certain distance, the bar 6 will be moved in the same direction through an equal distance against the action of the spring f,

the bar I) being free to returnto its normalposition upon oscillation in a reverse direction of the rock arms A the bar I), owever, being held or checked in the position to whichit has been moved by the engagement of the pawl 42 with the proper tooth of the ratchet 43. In this manner the bar I) is withdrawn fromengagement with the first tooth of the sector 38 to the been de ressed in a corresponding row.

- thereof in the ,diskd. Upon rotation of the shaft. S one or more sectors having been released and being free to move under actibn 9f the springs f, will advance until stopped by the engagement of the detent 39 with the particular tooth t" on the spiral sector 38 which corresponds with the row of pins in the diskd in which a pin has been depressed. It will be remembered that during this movement I of the sectors the I have figure wheels and pinions havebeen ralsed the various distances of movement of cor- 1 responding sectors, are independent of the bars I) the instant the pawls 42 engage the proper teeth in the-series of ratchets 43, whereupon the bars 5 which have been movedflmay be immediately returned without waiting for the sectors to complete, or even commence, their re'ciprocations. Such return of bars I) and consequent return of plates 18 to their normal positions (shown 'in Fig.2) is effected by the spring pressure which, as before explained, holds the end of- -pitman 26 against its cam O moving said pitman to the left, Fig. 1, rocking the arms A and causing bar m carried thereby to engage pins m? (Fig. 1) of all bars b that have been moved and thus return said bars -to their normal positions.

keys k to k", of'thecommon or usual pattern, identified in the'usual mannerby the My machine is provided with nine digit V proper 1 symbols, and each comprising a are springpressed to a normally raised position, the stem of each having apiVot-al I connection (shown in dotted lines F ig.'-2)

with a corresponding horizontal lever L. Levers L are eacliprovided atone end with a hammer 46, and at their other ends are fulcrumed upon a shaft S suitably fixed in the frame of the machine. These levers L are shaped-and adjusted, as shown in Fig. 5, to bring the series or rowof hammers 46 into operative juxtaposition with one of the rows of 'pins P to P in the disk d. The disk d being stationary-for operation, the depression of any, one of the digit keys kl to k will cause its corresponding hammer 46 to strike and depress a corre sponding pin in that particularfrow thereof which is for the timebeing under said ham-' mers. As hereinbefore described, each pin is temporarily retained in its depressed position, and it is desired to advance the-row in which it is locatedone step to bring the next, succeeding row under the hammers, and

ready-for the depression in a similar unanner of 'any one of the saidlastmentioned row. "Advancement'of the disk d one step upon the release of a digit key is accomplished, through. theescapement mechanism hereinbefore described, by providing for the depression ofi-the bar b simultaneously with the depression of any one of 'said digit keys: For this purpose, I have shown a pair of rock arms A; pivoted up n the shaft 3, and connected at their ext emities by a rod 47 against which I allof said digit key levers L impinge. The

arms A: and rod 47 are normally springpressed'in anysuitable manner as by spring a Fig. 5-to their raised, 'ositions.

rock arm A is mounted on a s aft S journaled in bearings in a pair of supports or brackets48, said arm and shaft being provided with coiiiiteracting shoulders '(see' -structio'n--whereby said arm maybe rocked by said shaft or independently thereof. The

Fig. 27)a' common and well-known con-' arm A is provided with a forked extremity, engaging a pin 49 near the lower end; of said bar 6 Carried by the rod 47 is the lever L,,of substantially S-shape (part of which is shown in dotted lines iIrFig. 2) to avoid intermediate artsand to provide for the application 0 power at proper points. This lever L is provided with a slot 50 (the function of which will be here'- inafter made clear) the upper end of which engages a pin 51 upon the rock arm A", to

efltct downward movement of said arm with the downward'movement of said lever. Upon depression of any one of the digit keys, therefore, the lever L operated thereby will depress .the rod 47 therewith and V operate the lever L, depressing the arm A and therewith the bar 6 operating the escapement mechanism hereinbefore de- 1 scribed and permitting of the advancement or rotation of the disk d through one,step. This operation may be repeated until for a number, of say five figures, said diskhas been advanced five steps, each row of ins oper- 3 ated upon having one pin thereo in.a depressed positionadapted to be engaged by its corresponding plate 18 when the latter is advanced by rotatlon of the cam shaft S.

' The cam shaft S is operated from the shaft S by means of a. chain of gears g, g',

g and 9?. It will be remembered that the shaft S issubject at all times to a force tending *to rotate the same, and does soro tateand therewith the shaft 8 except when said shaft Sis held or checked against rotation. Projecting from a collar 52 fixed upon the shaft S is the stop-arm'53 normally impinging against the extremity of the rod 54 pivoted to drop into the path thereof. Th s rod 54 is preferably pivoted to the buffer 55 ofa dash-pot 56, of common and usual construction and function.

Whenit is desired to rotate the shaft S it is only necessary to: momentarily raise the endof the pivoted rod '54 clear of the path ofithe stop 53 on said shaft, whereupon said shaft will rotate under the described application of power until again checked by reengagement betweensaid stop and rod. To effect this release, I have shown a pivoted lever L the free extremity 'of whlch impinges against the lower face'or edge of the rod 54. This lever is adapted to be'raisedby depression of a lever L", the

power being pre erably transmitted through preferably spring-pressed to its normal posi- -tion. The lever L? is held in its normal or raised position by means of, the pivoted detent 57 which engages the arm-A secured to 7 said lever.

. A bar 5 is mounted in slide bearings suitable-supports and is capable of a limited longitudinal j movement therethrough. One

extremity thereof is pivoted to, the arm A of the bell-crank'lever operated by the registei' bar 58, the other arm A of which lever being one of a pair of supporting arms. which carry said register bar 58, normall spring-pressedto a raised position. Longitudinal'movement of the bar b is thus effected by depression of the register bar.- This bar 12 is provided with a in 59, between which and the arm A" is istended a tension spring f, adapted upon forward movement of said barto exert a yielding grce against said" arm A", which, as de' ribed, is checked b3 thedetent 57. A 'pin 60 is suitably lobate upon said bar 5*, and

adapted at the proper time to'- engage the L arm Afisecurd to and controlling movement of the detent '57, raise said detent and free the arm A. The spring I having beenzpreviously distended, said arm will move suddenly forward upon release, causing the lever L to strike a sudden .and forci ble blow against the 'endof the lever L,

which is depressed to raise the end of the rod 7 54 and instantly returned when the end of said lever L has passed beneath. A pin 61 on the bar I) is located to engage the arm A upon the return of said her and effect reengagement between said arm and the detent 57. The'lever L jbeing free to rise with-I v out afi'ectin the lever L, vthe'lever L in re-..

turning wi freely raise and pass the lever'f L", whlch. drops at once to,its normal osition. This ad ustment is provided to insure quick action, whereby, up being r d to.

. 18 against movement.

release the stop-arm 53 on the shaft the rod 54 will, under ordinary conditions, be. returnedin time'to be again engaged by said stop-arm 53 to limit movement of said shaft to one rotation only.

A certain number 1s set up by successively depressing the proper digit keys, operating .through the hammers to depress a corresponding pin int-he row thereof successively brought under said hammers and carried forward one step after each operation. The proper digit ,keys having been successively depressed to completely set up the "desired (number, the register bar is depressed, op-

erating, as described, to raise the stop-rod and permit of one rotation of the. cam shaft.

This rotation of the cam shaft operates to withdraw the bars 6 corresponding to the plates 18 which have been released, to the proper distances from the, spiral sectors;

Immediately thereafter, the cam C operates to exert yielding forces upon the entire se-- ries of sector arms (the figure wheels and pinions having been just previously raised,

as described) moving those sectors which have been released through the predetermined distances or arcs, and (the figure wheels and pinions having" been returned) positively returning said sectors to their normal positions and thereby rotating the proper figurewheels through .the desired arcs to indicate thereon the figures represented by the digit keys depremed and in the order of depression. If a number is already represented on the figure wheels, the employment of. suitable carr ing mechanism, such as will be hereina er described,

will effect the addition of the two numbers and indicate their sum. v

I provide a single-cipher key is adapted upon depression to operate the escapement mechanism to advance the ,disk al one step without depressing any of the pins P} to P", whereby the pin P in that row is notraised but continues to hold a corresponding plate This key is one of a series of preferably five keys is, k, k, k and is, adapted, respectively, to advance the disk d through one, two, three,

four or five steps, atone operation, and which may be operated independently or, if

desired, simultaneously with the depression of one of thedigit keys. 'Thefunction of the key' 70 being to advance the diskd through one step without depressing a pin, and thereby prevent any impulsebelng sent to the particular figure wheel corresponding in position to the position of the cipher in the number beingset up (except as provided by the carrying of 1from the wheel' to the right thereof), I provide upon'the-stem 62 of the key k which is spring-pressed to its raised position by spring 620, similar springs being provided for the other cipher I keysa tapered or beveled shoulder '5 imthe extremities of'the pair of rockarms A" fixed upon the shaft S. It.will be remembered that the arm'A is mounted u on the shaft S to -rock-therewith and in ependently thereof, in consequence of which depression of the key 70 will operate through the arms A to rock said shaft S, depress the arm A and therewith the bar 6 to release the escapement, as described. The slot 50 in the lever L. provides for the movement pinging against the rod 63 carried between I for an escapem'ent.-

mounted in slide bearings for a limited, 'ver- 'tical reciprocating movement and springpressed to its normal or raised position.

Mounted in slide-bearings in the pair ofsupports 63 63 are. two horizontallydisposed, longitudinallyaslidable, contiguous bars or rods 1) and b, normally locked together for joint movement by means of the spring-pressed detent 64, pivoted on the bar I) and engaging a pin 65 on the bar I). The lower of these two bars, b, is provided with a pin 66 engaged by a fork 67 at the.

extremity of a rock arm A at one end of a shaft *L, another rock-arm b .on said shaft being provided with a similar fork 68 operating in an annular groove 69 at "the end o f-the sleevev 9, to raise and lower-the disk d, which, as hereinbefore described, is adapted upon depression to successively engage and withdraw the pins 11 ,1), p,

. P and p from the groove 6- in the d1sk d.

It has been seen that the depression of said disk throu h a'certain distance 'will withdraw the s ortest of said'pins; through a slightly greater distance, the next pin, and so. on. Depression of said disk is thus controlled bymeans of the sliding bars 6 and stated,-in unison. V 1

I have shown eachof the vertical stems of the keys k k, k, k"- and is. provided its 6", operating, under ordinary conditions, as.

with tapered or. beveledshoulders 6,12 a, i and if, respectively providing inclined planes of successively mcreasing pitch or. angle. Mounted upon'the lower. bar 6 and each located and adjusted to be'immediately engaged by its corresponding beveled shoulder or inclined plane upon depression of any one of said keys, is 'aseries of pins 70, adapted to move said bars horizontallly1 through adistance which varies as the pitc or angle of the inclinedplane upon the particular stem depressed. Depression of the single cipher-key under ordinary conditions does not bring'its shoulder '11 into action against its pin 70 and hence does not move bars 6" and b. ,'Depression of the twocipher key k wi llhowever under normal conditions move .the bars I) and 6 through 5 the proper distance to withdraw the shortest 7? of the pins from the groove 6 of the. disk (1 and permit an escapement of one additional step, or two steps in all. Simi- =la ly, depression of the key In will with- 1o draw thetwo pins p and from-the groove, permitting of an escapement of three steps, depression' of key 70 will eflect an escapement of four steps and of key k five steps.

r I have referred to the simultaneous delpression of both a digit key and a cipher ey., This is to facilitate the setting up of such a number as 5000 which, while first striking the digit key In? and subsequently the three-cipher key is" will prop- 20 erly set up this number, still time may be saved by making it possible to produce the same result by simultarieouslyde ressing both keys. In order to provide for t e additional esca ement of one stepthe addition of the digit making this step necessaryI have shown the lever L provided atits lower extremity with a shoe 71, adapted, upon depression of said lever as hereinbefore described, to' engage the operating lever $0 72 of the. detent 64 and release'said detefit from engagement with the pin 65, to permit of the longitudinal movement of the bars b and 6' independently of each other within the limits provided by the pin 73 in the notch 74 I'have also shown'a lon'gitudL.

- nally-reciprocating bar b, pivotally. mounted upon the pair of. rock arms A, and provided with a series of notches 75, (Fig. 3) normally clear of the path of each of a i '40 corresponding series of pins 76 (Fig. 2

' on the cipher-key stem 62.. This bar b is normallyadapted to engage any oneof the pins 76 to stop downward movement of the ey stems 62, and whenmoved longitudinally to a point where the notches 75 register with thespins--76,,it is obvious that each of the stems 62 will be capable of a. slightly 7 increased downward movementor through an additional distance equal to the depth of the' notch.-. To provide for this longitudinal movement through the proper distance of the bar b, I have shown a tapered or beveled shoulder; 77, providing an inclined plane. upon the upper extremity of one of the rock arms A, adapted to be impinged by theend of the lever L iii its downward movement, these parts being adjusted to provide forpro er distance of movement ofthe bar 6' w en the lever L isdepressed 6o operation'of any one of .the digltkeys.

ch 'cipher-key'stem' is thus capable of an additional downward movement, when de pressed simultaneously with the depression 7 of a'digit key, and the bars I) and b being now movable independently of each other,

I the bar 12 will be moved one additional step to withdraw from the groove 6 in the disk d one more of the pins 29 to 71 than would be so withdrawn by the depression of the cipher key alone. Thus, depression of a 7g digit-key and cipher-key is. will result in such downward movement of the stem of said cipher-key as to bring its beveled-shoulder 2' into action against its corresponding pin 7 0, moving bar b to the right a distance 75 sufficient to actuate rock-arm A, shaft L and rock-arm b lowering disk (i to withdraw "pin 1) from the groove 6 in disk (1, and thereby permitting an escapement of 7 two steps. In like manner, depression of '30 a digit-key and the five-cipher key is will lower .disk d a distance sufficient to withdraw all of the pins to 11 inclusive from groove 6,- permitting an escapement of six steps, the movement of disk d undering5 fluence of spring i being in such case arrested by extremity 7 of groove 6 making wided' with a series of approximately radially disposed plates 770, corresponding to the radial rows of pins in the disk 11. These plates are provided with teeth It meshing with the teeth ofthe inion 78 secured to the single figure wheel T9 rotatably mounted in suitable supports on the disk d". A spiral spring 1", one end of which is secured to the rim of said figure wheel and the other to one of the supports therefor, provides a force constantly tending to rotate said wheel, which rotation is checked except as I the plate 77 is free to move. Teeth t are provided on the lower edge of this'plate 770, adapted to be engaged by a springpressed awl 80, said, pawl being provided' with a s ort operating lever 81.

A lever L fulcrumed at 82 in a support suitably carried by the frame of'the machine, is operated by means of a pin 83 at the extremity of the arm'A fixed upon the rod 47, which, as has been described, is de- 7 pressed upon each depression of a digit key; l

pin 83 operates in the slot 84- -provi mg for. 12 a slight time element-inv the extremity of i said lever L. flever L is provided with a Iate'raIlyTprojecting forked extremity 85, adjusted with reference to the disk d" so that under normal conditicns each of the 1 25 pawl-operating levers 81 will pass freely between the branches of the fork 85, each step in the movement of said disks (3 and d suc cessively bringing one of the levers 81 into position to. be engaged by saidfcrk when 186 moved in a vertical. direction. It-will be apparent that upon striking a digit key, in addition to depressing its corresponding pin in the disk (1, the lever L will be operated-- 5 to raise a corresponding pawl-releasing le-. ver 81 and permit of the longitudinal movement of said plate 7 70 .in an outward direction, or away from. the center of the disk. I have shown a pin 86 projecting from the 1 lower edge of said plate 770, said pin being bent to. provide a laterally-p'ro'ecting portion 87. I (See Fig. 28:.) This pin 86, in ad-' dition to providing a permanent stop to engage the end of the slot in the. disk d to limit the movement .of said plate toward the center of the disk, also provides a stopthrough the bent portion 87 thereof adapted under normal conditions to pass freely under the upper arms of the branchedextremities of a series of pivoted rods 88,

"the lower arms of which rest upon the hammers 46. Each of said rods 88 (Figs. 22 and 23) is, adapted to drop by gravity as its .corre'sponding hammer is depressed under 25 the action of-a digit key. To provide .positive stops for the downward movement of these rods- 88, and-at the same time provide auxiliary lateral guides and supports, I

have shown a plate 89 (Figs. 24 and 25.)

provided with a series of elongated notches .90 through which said rods 88 extend, the

plate 89 comprising a laterally bent portion of the arm 91 suitably secured, as shown, t5

' the frame of the machine. It. will be apparent that when a certain digit, key is struck, resulting in the depression of a corresponding .pin irsa row on the disk 11 one extremity of the lever L will be depressed, u raising the fork 85 and operating the lever 81 to release the pawl controlled thereby, to permit of rotation. ofthe figure wheel 79 under action of the spiral spring'f'. De-- pression of the hammer operated by theparticular digit key struck, permits a corresponding rod 88 to fall in its notch in the plate 89, bringing the arm 92 thereof into Y the path of the arm 87 of the in 86, to stop movement of. the plate7 70, and consequently j of the'wheel 79, at a oint determinable by I the striking of the desired digit key. It will :be apparent that the relationship of these parts may be, and is herein illustrated, so ad Listed that movement of. the plate? 7 0 will stopped at-that point where the figure wheel 79 (which is provided with the. ten digital characters) Wlll indicate a value corresponding to that of the key depressed and (the pin in the disk d whichhas been depressed. I prefer to provide the casing of mymachineivith a glass plate93 (Fig. 2 I

. so that these figure .wheels '79 may 'be..con-' stantlyin; view and the work verified as it progresses. Naturally, these preliminary gu're wheels must be returned to zero afterthe number has been sent forward to the register'ihg mechanism T0 1% I mplish this, I have i y'gr ved disk .1

fixed upon the lower end of-asleeve 94 slidable upon the shaft S". Through apertures in this disk, and corresponding apertures in 95 provided with heads 96to limit their up- .o the disk d, are vertically disposed the rods ward movement. Attached to the, upper ends of these rods are strings or cordspreferablyof gut-the other extremity of each of which is attached toythe end of a plate 770, passing through suitable aper- 1 tures in the diskd and the flange 97. The

rods are normally in their lowerpositions,

as indicatedin Fig.2, the plates 770 being in their normal or retracted positions. It

.will be apparent that longitudinal movement of any one of these plates 7 70' will operate. through'the corresponding cord to raise a correspondin rod 95 through a distance equal to the dISlZSJlCUOf movement of saidv plate; Operating within the peripheral groove 98 ofthe disk (i isthe folk 99 at the extremity of the lever L" pivoted at 100 and operated by means of the short arm A"; A connecting rod or plate 101 is pivoted to said arm and provided with a pin'102 projecting into a double slot 103 in the arm A of thebell-crank lever directly operated by the register bar 58. This pin 102 is normally within theupper portion of the double" slot 103,v where it is engaged .upon movement of said arm 'A to rock the arm A and When va number is f depress the lever L. transferred to the calculating or registering mechanism by the depression of the bar 58,

the lever L .will be'operated to depress such of the rods 95 as have been raised and draw said plates. 770-01 such thereof as have been moved upon release by the actionof their operating. springsto normal positions,;thereby returning thev figure wheels 7 9- to zero.v Simultaneous with the above-described operation, should be the release of the depressed pins in the disk d, which have served'theirpurpose in providing for the forwarding of the proper number to the registering mechanisms. ;This is provided for by the U-shaped lever L, normally elevated by a spring 1 depending from the casing Fig.2, and pivoted for vertical reciprocation, the' semi-circular portion of which registers with-the series of pins P in substantially one-half the rows on the disk d. .This U-shaped lever is provided with a short projecting arm A", pivoted to which is the connecting rod 104, of the pe u i t d at 108 and reciprocated .by

The other end of the rod'104 is pro-'- means of the lever L operated by the cam Ci on the shaft S Engagement between said cam and lever is so timed by the configuration of the former and its adjustment upon the shaft as to depress the lever L and therewith the rod 104 immediately after 'the plates 18 have been returned'to their normal or retracted positions in the manner hereinbefore .described. The pins P which have been released by the depression of pinsP to P? in the same rows'will there- 7 fore be simultaneously and positively de j values in multiples 0 ten from the initial wheel. v mechanism includingten bars 6 ten plates pressed by means of said lever L releasing and returning to normally raised and inoperative positions, as will be remembered, any pin P to l? which have been depressed.

The machine illustrated in the drawings is provided with a series of eleven figure wheels 35, each with the usual, equi-distantly disp0sed,' eripheral characters indicating the digits rom 1 to 0, the first wheel of the series, to the right, representing units, the next. tens, the next hundreds, the next thousands, and so on; or the first cents, the next dimes, the next dollars, and so on or the' series may signify an abstract or concrete .1 have hereinbefore described 18, and ten rock-arms A, whereby'each of ten of these wheels is rotated through an are which will bringthe desired digit or numeral thereon into alinement with others (at a convenient point in the line of vision of the operator. I have furthermore described how successive'depressions of a predetermined arrangement -or combination of digit keys will set up a number which is transmitted to the figure wheels by depression of the register bar. The eleventh figure wheel 35 the lowermost in ,Fig. 4, has no corresponding plate 18 and bar If, and is' provided to increase the capacity of the maother, in performing processes of addition.

It is obviously 'necessary that one complete revolution of the units wheel, from 0 to 0, shall efl'ect movement of the tens wheel through one step, or one-tenth of a revolution, to add 1 to the numeral already appearing thereon. Similarly, each complete revolution of the tens wheel should carry 1 to the hundreds wheel and so on through the series. 1

There are many well-known ways of efiecting movement of one step of a wheel.

by' the complete revolution of a wheel contiguous thereto, but for many reasons I prefer theone herein shown and described. I haveshown a series of levers L fulcrumed at 109 (Fig. 1) upon a shaft suitably carried by the frame of the machine, one end of each thereof. being provided with a detent 110 normally spring-pressed to a position to engage a pin 111 upon a contiguous sector 29. The other extremity of this lever is provided with a shoe 112 adapted to be v impinged bya pin 113 upon the face of the figure wheel contiguous to said lever upon the opposite side thereof. It will be appar ent that. as each 'figurewheel is revolved (counter-clockwise in direction-referring to Fig. 1) apoint is reached where the pin 113 will contact .with' and depress the shoe 112, operating through said lever L to withdraw the detent from engagement with the pin 111'to permit of movement of said sector29 through one additional step, limited by the permanent stop-bar 114, suitably mounted upon the base-board of. the

machine, against which all of saidspiralsector arms A are adapted to impinge. To provide theforce for movingthe sectors 29 this additional step or distance-required at different timesfor each sector, and the" rod 32, acting simultaneously against all thereof, not being available for this purpose I have shown (in dotted lines Fig. 1) a series of individual levers L pivoted ll-pona shaft S and each under constant.

pressure of a spring f in tension between the arm A 'of each of said levers and a rod 115 supported between a pair of arms A, on the branch% 31 of the levers L Each of said levers L impinges against a pin 116' on a corresponding sector arm A Under this constant but yielding prcmsure eaclrse'ctor 29 will :move the additional stepv when the detent 110 is withdrawn in the io'o int 7 mannerdescribed. As said figure wheels.

arenot afiected when said sectors are moved in the reverse direction, the latter are re-set' for the next operation without regard to this additional step or distance through.

which .one or more of them may have been I moved in carrying. From the previous de scription, it will be understood that the rockarm A and its sector 29,- of the eleventh figure-wheel 35, have no movement to the left from the position in which similar I parts are shown in 'Fig. 1, but can move only through'the additionalstep, limited by the permanent stop 114, to registertens carried to said wheel.

the tenth Wheel 35 moves from nine to zero, the pin 113 thereof actuates itscorrwpondor example, when 

